Circulatory systems

Biology · IGCSE · Cambridge · Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) · Specification point · 9.1 · Transport in animals

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9.1 Circulatory systems

Core	Supplement
$1 Describe the circulatory system as a system of blood vessels with a pump and valves to ensure one-way flow of blood$
	$2 Describe the single circulation of a fish$
	$3 Describe the double circulation of a mammal$
	$4 Explain the advantages of a double circulation$

Circulatory systems (9.1) | Cambridge IGCSE (9–1) Biology 0970 (Extended) (2026–2028) | KnowledgeSet